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Finding the Fourth Proportional to 558,479.71, 770,705.35 and 303,832.72

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Solution

The fourth proportional to 558,479.71, 770,705.35 and 303,832.72 is: 419,290.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,479.71 : 770,705.35 = 303,832.72 : x
  2. Step 2: Convert to fraction form
    558,479.71/770,705.35 = 303,832.72/x
  3. Step 3: Cross multiply
    558,479.71x = 770,705.35 × 303,832.72
  4. Step 4: Simplify right side
    558,479.71x = 234,165,503,012.85
  5. Step 5: Solve for x
    x = 234,165,503,012.85/558,479.71
  6. Step 6: Final answer
    x = 419,290.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.